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Perkins JM, Lee HY, James KS, Oh J, Krishna A, Heo J, Lee JK, Subramanian SV.Perkins JM, et al.BMC Public Health. 2016 Sep 30;16(1):1032. doi: 10.1186/s12889-016-3682-9.BMC Public Health. 2016.PMID: 27716203Free PMC article.